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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009077768873 1,259 digits created 2026-08-12

Value

40850662574229590267400824291870563747141941487140219610248032431784200081277973826579321350152867350537374873362137991075149287728877114036761977144263897991917077720874991930437784395913920527566773821522429339184535216228257301606250611125103407893107764275993563506902601673849793373806482521763433696168517188168520635956245193887695432415724084338682883427005956262785921786335606434978049226067819358251431296283105225142549322299465975280765815744355687070239063725519067520531197675444255445802147066113841044035003227593518046357057410266620057692983499226045924500838945629125486577739765121527987845005060496027387292267108631998411341964919624543984683790051369759099853906746757073418751007563618666597785923301445704276607985316690602373347407741064019824708907871674725267861068420202007502059223318302376738807074879160915285699308182880485665705057476001926476673778320521113326670249397076472722283851816143093984291524436043418693068820756193097593070147512300020787969524608028801617713796923620490078626709940590468819481860954176796026969898941641445052949982062718656600947090404434954811690531392228355040431091908637996459074830161323784524705045711241793900444157986454014226642786105902386795098014572535878024223978814501009725951
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 60 of the certificate chain of a 2,022-digit prime (154 intermediate primes).

Certified number2,022-digit prime
Certificatedownload
Certificate chainshow step 60 of 154

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009077768873 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009077768873},"decimal":true,"detail":2}}'